Harvester and its folding silage header

Abstract

The application discloses a harvester and a folding silage header thereof, wherein the folding silage header comprises a hanging device, harvesting devices, a translation device, a locking device and a turnover device; the hanging device is used for detachably hanging on a vehicle body; two groups of the harvesting devices are arranged on opposite sides of the hanging device; the translation device is used for driving the two groups of the harvesting devices to be close to each other to a first use state of abutting against the hanging device, and is also used for driving the two groups of the harvesting devices to be away from each other to a second use state of having a preset horizontal interval relative to the hanging device; the locking device is used for locking and fixing the harvesting devices relative to the hanging device when the harvesting devices are in the first use state; and the turnover device is used for driving the harvesting devices to be turned over and folded relative to the hanging device when the harvesting devices are in the second use state. The folding silage header provided by the application can improve harvesting efficiency, reduce a transverse occupied space through folding action, and is beneficial to transportation, site transfer and operation adjustment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural equipment, in particular to a folding silage header and a harvester adopting the same. BACKGROUND

[0002] Most of the existing silage headers are simple back-mounted small silage machine headers, and the main working components are integrated on the header, which has a complex structure, unreasonable design and low efficiency. With the rapid development of the livestock industry in recent years, the planting area of silage feed has been increasing year by year, and with the increasing scale of cattle and sheep breeding, the demand for silage feed is also increasing day by day. The harvesting efficiency of conventional small silage machine headers has been difficult to meet the supply demand of market silage feed. However, the existing large silage headers have complex transmission structures, too large size, which leads to inconvenient transportation, high difficulty in site transfer, inflexible operation adjustment and poor applicability. SUMMARY

[0003] The present application primarily provides a folding silage header to solve the technical problems of the existing large silage headers, such as too large size, inconvenient transportation and poor applicability.

[0004] The present application also provides a harvester adopting the folding silage header.

[0005] According to one aspect of the present application, a folding silage header is provided, comprising:

[0006] A hitching device is arranged for detachably hitching to a vehicle body;

[0007] Two groups of harvesting devices are arranged, and the two groups of harvesting devices are arranged on opposite sides of the hitching device;

[0008] A translation device is arranged on the harvesting device, and the translation device is used to drive the two groups of harvesting devices to be close to each other to a first use state in which the harvesting devices are in close proximity to the hitching device, and the translation device is also used to drive the two groups of harvesting devices to be away from each other to a second use state in which the harvesting devices have a preset horizontal distance from the hitching device;

[0009] A locking device is arranged on the harvesting device, and the locking device is used to lock and fix the harvesting device relative to the hitching device when the harvesting device is in the first use state;

[0010] A turnover device is connected with the hitching device and the harvesting device, respectively, and the turnover device is used to drive the harvesting device to be turned over and folded relative to the hitching device when the harvesting device is in the second use state.

[0011] Preferably, the overturning device comprises an overturning oil cylinder, an overturning seat and a guide mechanism, the first end of the overturning oil cylinder is hinged to the hitching device, the second end of the overturning oil cylinder is hinged to the overturning seat, the guide mechanism is arranged on the harvesting device along the driving direction of the translation device, and the overturning seat is mounted on the guide mechanism.

[0012] The translation device is used to drive the harvesting device to translate relative to the overturning seat along the limiting direction of the guide mechanism, and the overturning oil cylinder is used to drive the harvesting device to overturn to the vertical state or the horizontal state after the harvesting device is translated to the second use state.

[0013] Preferably, the locking device comprises a locking oil cylinder, a reset spring, a transmission assembly and a locking hook, the first end of the transmission assembly is connected to the locking oil cylinder and the reset spring respectively, the second end of the transmission assembly is connected to the locking hook, the locking oil cylinder is used to drive the transmission assembly to rotate and drive the locking hook to be hinged to the preset locking groove of the hitching device or to be separated from the locking groove, and the reset spring is used to exert an elastic force on the transmission assembly along the hinging direction of the locking hook.

[0014] Preferably, the hitching device comprises a central gear box, two universal shafts and two transmission gear boxes, the central gear box is used to be connected to the power device of the vehicle body, the first ends of the two universal shafts are connected to the two ends of the central gear box respectively, the second ends of the two universal shafts are connected to the two transmission gear boxes correspondingly, and the two transmission gear boxes are connected to the two groups of harvesting devices correspondingly.

[0015] The universal shafts are respectively provided with overload protectors and pawls, the pawls are used to engage the transmission gear boxes relative to the central gear box when the harvesting devices are in the first use state, and the pawls are also used to separate the transmission gear boxes relative to the central gear box when the harvesting devices are in the second use state.

[0016] Preferably, the harvesting device comprises a harvesting frame, a driving sprocket and a driven sprocket arranged on the opposite ends of the harvesting frame respectively, chains arranged around the driving sprocket and the driven sprocket respectively, and a swathing finger and a following cutter arranged on the chains respectively.

[0017] The harvesting frame is provided with a fixed cutter along the transmission direction of the chains, the swathing fingers are arranged in multiple groups along the chains and are used to drive crops to move to the fixed cutter in the process of rotation of the chains, and the following cutters are arranged in multiple groups along the chains and are used to be driven by the chains to cooperate with the fixed cutter to cut the crops.

[0018] Preferably, a limiting sliding groove is arranged at the front end of the harvesting frame along the advancing direction of the vehicle body, the limiting sliding groove is arranged vertically relative to the advancing direction of the vehicle body, a plurality of supporting bearings are arranged on the chain, the sweeping finger and the trailing cutter are both mounted on the supporting bearings, and the limiting sliding groove is used for embedding and guiding the movement of the supporting bearings when the supporting bearings move to the front end of the harvesting frame along the chain.

[0019] Preferably, the harvesting device further comprises a first crop divider, the first crop divider comprises a mounting frame, a crop tooth, a crop finger and a positioning sleeve, the mounting frame is mounted on the harvesting frame, the crop tooth is arranged at the front end of the mounting frame and is used for combing crops, and the crop finger is arranged at the rear end of the mounting frame and is used for guiding the movement of crops along the chain.

[0020] The crop tooth is hinged to the mounting frame so that the crop tooth can swing up and down relative to the mounting frame, thereby adapting to different ground heights, and the positioning sleeve is connected with the crop tooth and is used for limiting the swing angle of the crop tooth relative to the mounting frame.

[0021] Preferably, the hitching device comprises a second crop divider, the second crop divider comprises a crop front tip, two elastic sweeping fingers and a pressure sensor, the two elastic sweeping fingers are arranged at opposite sides of the crop front tip, the crop front tip is used for combing crops onto the two elastic sweeping fingers and guiding the crops to two groups of harvesting devices through the two elastic sweeping fingers, and the pressure sensor is connected with the two elastic sweeping fingers and is used for detecting the extrusion force of the crops on the two elastic sweeping fingers in real time, so that the deviation direction in the advancing direction of the vehicle body can be obtained according to the pressure difference of the two elastic sweeping fingers.

[0022] Preferably, the folding silage header further comprises a crop supporting device, the crop supporting device comprises a supporting frame, a crop supporting rod and an angle adjusting mechanism, the supporting frame is hinged to the harvesting device, the crop supporting rod is arranged at one end of the supporting frame away from the harvesting device, the supporting frame adopts a telescopic structure and is used for adjusting the height of the crop supporting rod through telescopic action, and the angle adjusting mechanism is connected with the supporting frame and is used for driving the supporting frame to rotate relative to the harvesting device, thereby adjusting the inclination angle of the crop supporting rod.

[0023] According to the second aspect of the present application, a harvesting machine is also provided, comprising a vehicle body and the above-mentioned folding silage header, and the folding silage header is detachably hitched to the vehicle body through the hitching device.

[0024] The present application has the following beneficial effects:

[0025] The folding silage cutter provided by this invention has a set of harvesting devices on each side of the hanging device. A translation device drives the two sets of harvesting devices to move closer or further apart. When the two sets of harvesting devices are close together in the first working state, a locking device can lock and fix the harvesting devices relative to the hanging device, stably limiting the two sets of harvesting devices to their respective sides of the hanging device. This allows the two sets of harvesting devices to be spliced ​​together along a straight line, effectively expanding the harvesting range of the folding silage cutter and improving harvesting efficiency. When the two sets of harvesting devices are far apart in the second working state, a flipping device can drive the two sets of harvesting devices to flip and fold relative to the hanging device. Because the harvesting device has a preset horizontal distance from the hooking device, the folding process of the harvesting device can be prevented from being interfered with by the hooking device or another set of harvesting devices. This allows the harvesting device to be completely folded over the hooking device, shortening the overall lateral length of the folding silage cutter and reducing the lateral space occupied. This makes it more convenient for transportation, relocation, and flexible adjustment of harvesting operations. Furthermore, since the harvesting device can be folded flexibly without interference from the hooking device and another set of harvesting devices, and can be stably fixed after unfolding by the locking device, the length of the harvesting device can be flexibly extended as needed to achieve a larger lateral operating range and further improve harvesting efficiency.

[0026] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0028] Figure 1 A perspective view of a folding silage harvester provided in an embodiment of the present invention;

[0029] Figure 2 for Figure 1 The diagram shown is a three-dimensional representation of the folding silage harvester with some parts removed.

[0030] Figure 3 for Figure 2 A top view of the folding silage harvester shown;

[0031] Figure 4 for Figure 1 The diagram shows the internal power transmission structure of the hanging device in the folding silage harvester.

[0032] Figure 5 for Figure 1 A perspective view of the harvesting device in the folding silage cutterhead shown;

[0033] Figure 6 for Figure 5 a perspective view of a part of the harvesting device shown in Fig. 1;

[0034] Figure 7 for Figure 5 an assembly view of the tines and the trailing cutter in the harvesting device shown in Fig. 1;

[0035] Figure 8 for Figure 1 a distribution view of the first and second divider in the folding silage header shown in Fig. 1.

[0036] Legend:

[0037] 1000, folding silage header; 1, hitch device; 11, central gear box; 12, universal shaft; 121, claw disc; 122, overload protector; 13, transmission gear box; 14, reversing gear box; 15, transmission shaft; 16, second divider; 161, divider front tip; 162, elastic tine; 2, harvesting device; 21, harvesting frame; 211, limiting chute; 22, driving sprocket; 23, driven sprocket; 24, chain; 241, support bearing; 25, tine; 251, upper tine; 252, lower tine; 26, trailing cutter; 27, cover plate; 28, first divider; 281, mounting frame; 282, divider tooth; 283, divider tine; 284, positioning sleeve; 29, collision avoidance frame; 3, translation device; 4, locking device; 41, locking oil cylinder; 42, return spring; 43, transmission assembly; 44, locking hook; 5, overturning device; 51, overturning oil cylinder; 52, overturning seat; 53, guide mechanism; 6, supporting device; 61, support frame; 62, supporting rod; 621, reference part; 63, angle adjusting mechanism; 631, rotating shaft; 632, driving assembly; 6321, push-pull assembly; 6322, traction shaft; 64, limiting chain; 7, tower wheel conveying device. DETAILED DESCRIPTION

[0038] The embodiments of the present application will be described in detail below with reference to the drawings, but the present application can be implemented in various different ways as defined and covered by the following.

[0039] Figures 1 to 8 The folding silage header provided by the embodiments of the present application is shown, which is used to be installed on the vehicle body of a harvester to realize automatic silage harvesting operation. It not only has a larger harvesting range and effectively improves the harvesting efficiency, but also can be flexibly folded to shorten the transverse length, which is more conducive to transportation, site transfer and flexible adjustment of harvesting operation, and has strong applicability.

[0040] Please refer to Figure 1 and Figure 2The folding silage header 1000 comprises a hitch device 1, a harvesting device 2, a translation device 3, a locking device 4 and a turnover device 5. The hitch device 1 is used to detachably hitch to the vehicle body of a harvester and is locked and fixed relative to the vehicle body, so as to realize detachable connection of the folding silage header 1000 relative to the vehicle body. The harvesting device 2 is used to automatically harvest silage, and two groups of the harvesting device 2 are arranged on opposite sides of the hitch device 1.

[0041] Further, the translation device 3 is arranged on the harvesting device 2, and the translation device 3 is used to drive the harvesting device 2 to translate along the connecting line direction of the two groups of harvesting devices 2, so as to make the two groups of harvesting devices 2 approach or move away from each other. Specifically, the translation device 3 is used to drive the two groups of harvesting devices 2 to approach each other to a first use state in which the harvesting devices 2 are in close proximity to the hitch device 1, and the translation device 3 is also used to drive the two groups of harvesting devices 2 to move away from each other to a second use state in which the harvesting devices 2 have a preset horizontal interval relative to the hitch device 2. It should be understood that the preset horizontal interval is a safe distance in which the harvesting devices 2 will not be interfered by the hitch device 1 or the other group of harvesting devices 2 when the harvesting devices 2 are folded and turned over relative to the hitch device 1, and the specific interval size can be determined according to the shape, size and height of other structures arranged on the outer periphery of the hitch device 1 and the harvesting devices 2, so that the harvesting devices 2 can be flexibly folded relative to the hitch device 1 when in the second use state.

[0042] Preferably, the locking device 4 is arranged on the harvesting device 2, and the locking device 4 is used to lock and fix the harvesting device 2 relative to the hitch device 1 when the harvesting device 2 is in the first use state. The turnover device 5 is connected with the hitch device 1 and the harvesting device 2, respectively, and the turnover device 5 is used to drive the harvesting device 2 to fold and turn over relative to the hitch device 1 when the harvesting device 2 is in the second use state. Specifically, the turnover device 5 is used to drive the harvesting device 2 to fold and turn over to a vertical state or a horizontal state. When the harvesting device 2 is in the vertical state, it is erected above the hitch device 1, effectively reducing the transverse occupation space. When the harvesting device 2 is in the horizontal state (i.e. the state shown in the figure), it is unfolded to the maximum length in the horizontal direction, effectively improving the harvesting range. Figure 1

[0043] ​In the folding silage header 1000, the two sets of harvesting devices 2 are arranged on opposite sides of the hitch device 1 and are driven to approach or move away from each other by the translation device 3. When the two sets of harvesting devices 2 approach each other to the first use state, the harvesting devices 2 can be locked and fixed relative to the hitch device 1 by the locking device 4, so that the two sets of harvesting devices 2 are respectively stably positioned relative to the two sides of the hitch device 1, thereby splicing the two sets of harvesting devices 2 in a straight line direction, effectively expanding the harvesting range of the folding silage header 1000 and improving the harvesting efficiency. When the two sets of harvesting devices 2 move away from each other to the second use state, the two sets of harvesting devices 2 can be respectively driven to fold and overturn relative to the hitch device 1 by the overturning device 5. Since the harvesting devices 2 have a preset horizontal distance relative to the hitch device 1 at this time, the folding process of the harvesting devices 2 can be avoided from being interfered by the hitch device 1 or the other set of harvesting devices 2, so that the harvesting devices 2 can be completely folded above the hitch device 1, the overall transverse length of the folding silage header 1000 is shortened, the transverse space occupation is reduced, which is more conducive to transportation, scene transfer and flexible adjustment of harvesting operation. In addition, since the harvesting devices 2 can be flexibly folded without being interfered by the hitch device 1 and the other set of harvesting devices 2, and can be stably fixed after unfolding by the locking device 4, the length of the harvesting devices 2 can be flexibly lengthened as needed to achieve a larger transverse operation range and further improve the harvesting efficiency.

[0044] Preferably, the overturning device 5 is provided with two overturning devices 5, which are respectively connected to the two sets of harvesting devices 2. The overturning device 5 comprises an overturning oil cylinder 51, an overturning seat 52 and a guide mechanism 53. The first end of the overturning oil cylinder 51 is hinged to the hitch device 1, and the second end of the overturning oil cylinder 51 is downwardly inclined and hinged to the overturning seat 52. The guide mechanism 53 is arranged on the harvesting device 2 along the driving direction of the translation device 3, and the overturning seat 52 is mounted on the guide mechanism 53. The translation device 3 is used to drive the harvesting device 2 to translate relative to the overturning seat 52 along the limiting direction of the guide mechanism 53, and the overturning oil cylinder 51 is used to drive the harvesting device 2 to overturn to a vertical state or a horizontal state after the harvesting device 2 is translated to the second use state.

[0045] Specifically, the translation device 3 is also provided with two translation devices 3, which are connected with two groups of harvesting devices 2 one by one, so that each group of harvesting devices 2 is driven to translate by an independent translation device 3, and the translation device 3 is used to drive the harvesting device 2 to translate relative to the turnover seat 52 along the limiting direction of the guide mechanism 53, so that the translation of the harvesting device 2 does not drive the turnover seat 52 to move, and does not change the position of the turnover seat 52, and the harvesting device 2 can be translated to the position first, and then the turnover seat 52 is driven to overturn by the turnover oil cylinder 51, and then the harvesting device 2 is driven to overturn and fold by the turnover seat 52.

[0046] Further, the guide mechanism 53 includes a guide cylinder and a guide rod penetrating in the guide cylinder, the turnover seat 52 is installed on the guide cylinder, the guide rod is connected with the harvesting device 2 and is used to slide along the axis of the guide cylinder, and the translation direction of the harvesting device 2 is limited by the guide cooperation between the guide rod and the guide cylinder, so as to effectively improve the translation precision and stability of the harvesting device 2. In other embodiments, the guide mechanism 53 can also include a linear guide rail and a sliding block arranged on the linear guide rail, one of the turnover seat 52 and the harvesting device 2 is installed with the linear guide rail, and the other is provided with the sliding block, and the translation direction of the harvesting device 2 can also be limited by the guide cooperation between the sliding block and the linear guide rail.

[0047] Further, the piston rod of the turnover oil cylinder 51 is hinged with the hitching device 1, and the cylinder body of the turnover oil cylinder 51 is downwardly and obliquely arranged and hinged with the turnover seat 52. The cylinder body of the turnover oil cylinder 51 is arranged at the end far away from the hitching device 1, which can not only avoid that the large cylinder structure occupies the surface space of the hitching device 1 and affects the conveying of the silage material, but also is more convenient for arranging the related hydraulic pipeline on the cylinder body of the turnover oil cylinder 51, thereby improving the convenience of use and maintenance and repair.

[0048] Further, the translation device 3 includes a translation oil cylinder, the cylinder body of the translation oil cylinder is installed on the turnover seat 52, and the piston rod of the translation oil cylinder is connected with the harvesting device 2 and is used to drive the harvesting device 2 to translate by the telescopic action, that is, the translation and overturning action of the harvesting device 2 are driven by the hydraulic cylinder, so as to ensure that the driving force is sufficient and stable.

[0049] As Figure 3As shown, the locking device 4 comprises a locking oil cylinder 41, a reset spring 42, a transmission assembly 43 and a locking hook 44, the first end of the transmission assembly 43 is connected with the locking oil cylinder 41 and the reset spring 42 respectively, the second end of the transmission assembly 43 is connected with the locking hook 44, the locking oil cylinder 41 is used to drive the transmission assembly 43 to rotate and drive the locking hook 44 to be hooked on the preset locking groove of the hooking device 1 or to be separated from the locking groove, and the reset spring 42 is used to exert an elastic force on the transmission assembly 43 along the hooking direction of the locking hook 44.

[0050] Specifically, the transmission assembly 43 is provided in a multi-link structure, the first end of the transmission assembly 43 can drive the second end of the transmission assembly 43 to swing when the first end is translated, and the locking oil cylinder 41 and the reset spring 42 are both arranged at the first end of the transmission assembly 43, so that the locking hook 44 can be driven to swing by the linear driving action of the locking oil cylinder 41 to perform locking or unlocking action, and when the locking hook 44 is in the locking state, the reset spring 42 is used to drive the locking hook 44 to keep the state of hooking the locking groove, so as to avoid the locking hook 44 from being loosened due to the vibration of the harvesting operation and to ensure the locking stability.

[0051] Further, the locking device 4 is provided with two locking devices 4, and the two locking devices 4 are connected with the two groups of harvesting devices 2 one by one, the two groups of harvesting devices 2 are fixed by the two locking devices 4 respectively, the locking and limiting strength and stability are improved, the linkage structure between the two groups of harvesting devices 2 is reduced, the two groups of harvesting devices 2 are independently arranged, and the single disassembly and assembly for maintenance are facilitated.

[0052] As shown, Figure 4 As shown, the hooking device 1 comprises a central gear box 11, two universal shafts 12 and two transmission gear boxes 13, the central gear box 11 is used to be connected with the power device of the vehicle body, the first ends of the two universal shafts 12 are arranged at the opposite ends of the central gear box 11 and are connected with the central gear box 11, the second ends of the two universal shafts 12 are connected with the two transmission gear boxes 13 one by one, and the two transmission gear boxes 13 are connected with the two groups of harvesting devices 2 one by one. The hooking device 1 receives the power output by the power device of the vehicle body through the central gear box 11, distributes the power to the two transmission gear boxes 13 through the two universal shafts 12, and drives the two groups of harvesting devices 2 to act through the two transmission gear boxes 13 respectively, that is, the power distribution and output are realized on the hooking device 1, which not only can stably drive the two groups of harvesting devices 2 to perform harvesting operation, but also can improve the applicability of the folding silage header 1000, and the power distribution requirement of the vehicle body is not high, so that the hooking device 1 can be adapted to be hooked on different models of vehicle bodies for use.

[0053] Preferably, the universal shaft 12 is respectively provided with an overload protector 122 and a claw disc 121, the overload protector 122 and the claw disc 121 are respectively arranged at the axial ends of the universal shaft 12, the claw disc 121 is used to engage the transmission gear box 13 relative to the central gear box 11 when the harvesting device 2 is in the first use state, and the claw disc 121 is also used to separate the transmission gear box 13 relative to the central gear box 11 when the harvesting device 2 is in the second use state.

[0054] Specifically, the claw disc 121 includes a first engagement disc and a second engagement disc, the second engagement disc is connected with the central gear box 11, and the first engagement disc is connected with the universal shaft 12, when the harvesting device 2 is translated in the direction close to the hitching device 1 to the first use state, the first engagement disc is moved to the state of engaging the second engagement disc, at this time, power transmission can be realized through the universal shaft 12; and when the harvesting device 2 is translated in the direction away from the hitching device 1 to the second use state, the first engagement disc is moved to the state of disengaging the second engagement disc, at this time, the power is cut off, which is convenient for the harvesting device 2 to be folded while avoiding the harvesting device 2 from being accidentally started in the folded state. Secondly, when the first engagement disc is moved to engage the second engagement disc and realize power transmission, the overload protector 122 can slip when the harvesting device 2 is stuck, that is, the power transmission of the universal shaft 12 is cut off, realizing the overload protection function.

[0055] Further, the universal shaft 12 further includes a compression spring, the compression spring elastically abuts against the first engagement disc and is used to drive the first engagement disc to elastically abut against the second engagement disc, so as to ensure that the engagement is tight and the power output is stable.

[0056] Further, the hitching device 1 further includes a reversing gear box 14 and a transmission shaft 15, the reversing gear box 14 is arranged at one side of the central gear box 11 and is connected with the central gear box 11 through the transmission shaft 15, the reversing gear box 14 is used to be connected with the power device of the vehicle body, that is, the central gear box 11 is connected with the power device of the vehicle body through the reversing gear box 14, and power reversing is realized through the reversing gear box 14. Since the reversing gear box 14 is arranged at one side of the central gear box 11, the power connection structure on the hitching device 1 can be offset and arranged at the center, which is convenient for power docking and avoids blocking the delivery of silage materials.

[0057] Preferably, the transmission shaft 15 is provided with a universal joint to ensure power transmission in the case of vibration and displacement of the central gear box 11 during use, guaranteeing stable power output, and even a suspension system can be provided on the central gear box 11 to achieve buffering protection of the central gear box 11 in bumpy road conditions.

[0058] Please combine Figure 5 and Figure 6 , Figure 7 , the harvesting device 2 comprises a harvesting frame 21, a driving sprocket 22 and a driven sprocket 23 respectively arranged at opposite ends of the harvesting frame 21, a chain 24 arranged around the driving sprocket 22 and the driven sprocket 23, and a weeding finger 25 and a following cutter 26 respectively arranged on the chain 24, and the driving sprocket 22 is connected with the transmission gear box 13.

[0059] Specifically, the harvesting frame 21 is provided with a fixed knife along the transmission direction of the chain 24, and the fixed knife is fixedly installed and its blade direction is opposite to the movement direction of the chain 24. The weeding fingers 25 are arranged in multiple groups along the chain 24, and the weeding fingers 25 are used to move crops to the fixed knife during the rotation of the chain 24. The following cutters 26 are arranged in multiple groups along the chain 24, and the following cutters 26 are used to be moved by the chain 24 and cooperate with the fixed knife to cut the crops, and the weeding fingers 25 are also used to move the cut crops to the hitching device 1 to transport the cut crops to the vehicle body through the pre-set feeding mechanism on the hitching device 1.

[0060] Since the harvesting device 2 moves the weeding fingers 25 and the following cutters 26 through the chain 24, compared with the conventional disc structure, the harvesting device 2 can be designed as a long strip, effectively extending the harvesting range of the harvesting device 2, so that the front end of the harvesting device 2 can be used for harvesting operation, and only one set of driving structure can realize multiple cutting and logistics conveying actions in the straight line direction.

[0061] Further, the diameter of the driving sprocket 22 is greater than the diameter of the driven sprocket 23 to increase the meshing length of the driving sprocket 22 and the chain 24, so that the driving sprocket 22 can stably drive the chain 24 to move, and the chain 24 changes direction more gently at one end close to the hitching device 1, ensuring that the cut crops can be stably conveyed to the hitching device 1. Secondly, it can also reduce the width of the end of the harvesting device 2 away from the hitching device 1, reduce the weight, and improve the stability.

[0062] Please combine Figure 6 and Figure 7The front end of the harvesting frame 21 along the advancing direction of the vehicle body is provided with a limiting sliding groove 211 which is vertically arranged relative to the advancing direction of the vehicle body. The chain 24 is provided with a plurality of support bearings 241. The sweeping finger 25 and the follow-up cutter 26 are both mounted on the support bearings 241. The limiting sliding groove 211 is used to embed and guide the movement of the support bearings 241 when the support bearings 241 move to the front end of the harvesting frame 21.

[0063] Specifically, each link of the chain 24 is provided with the support bearing 241. When the support bearing 241 moves to the front end of the harvesting frame 21, it is embedded in the limiting sliding groove 211 and guided to move along the limiting sliding groove 211. Through the supporting and limiting effect of the limiting sliding groove 211, the stability of the sweeping finger 25 and the follow-up cutter 26 on the corresponding link is strengthened, thereby improving the stability of the sweeping finger 25 and the follow-up cutter 26 during harvesting operation, avoiding shaking, and improving cutting precision and feeding effect.

[0064] Further, the rear end of the harvesting frame 21 along the advancing direction of the vehicle body is also provided with the limiting sliding groove 211, i.e. the limiting sliding groove 211 is arranged along the two tangent directions of the driving sprocket 22 and the driven sprocket 23, thereby being able to strengthen the support of the chain 24 and further improve the stability of the sweeping finger 25 and the follow-up cutter 26. It should be understood that in other embodiments, the limiting sliding groove 211 can only be arranged at the front end of the harvesting frame 21 along the advancing direction of the vehicle body.

[0065] As shown in Figure 7 The sweeping finger 25 includes an upper sweeping finger 251 and a lower sweeping finger 252. The upper sweeping finger 251 and the lower sweeping finger 252 are vertically spaced and laterally staggered. The protruding length of the upper sweeping finger 251 relative to the chain 24 is greater than the protruding length of the lower sweeping finger 252 relative to the chain 24, so that the upper sweeping finger 251 and the lower sweeping finger 252 can stably clamp and move crops in cooperation.

[0066] Further, each link of the chain 24 is provided with a cover plate 27. Adjacent two cover plates 27 are arranged in a stacked manner. Adjacent two cover plates 27 can overlap each other at the turning position of the chain 24, thereby avoiding interference with the movement of the chain 24. The chain 24 and the support bearing 241 are shielded and protected by the cover plate 27, thereby avoiding foreign matters from entering the inside of the chain 24.

[0067] As shown in Figure 8As shown, the harvesting device 2 further comprises a first divider 28, which comprises a mounting frame 281 mounted on the harvesting frame 21, divider tines 282 arranged at the front end of the mounting frame 281 and used for combing crops, and divider fingers 283 arranged at the rear end of the mounting frame 281 and used for guiding crops to move along the chain 24. It should be understood that the front end of the mounting frame 281 is the front end in the advancing direction of the vehicle body, and the rear end of the mounting frame 281 is the rear end in the advancing direction of the vehicle body. During the harvesting operation, the harvesting device 2 first contacts the crops through the divider tines 282 and combs the crops to the two sides of the divider tines 282, so as to avoid the crops from gathering and affecting the harvesting effect, and after the crops are cut off, the divider fingers 283 can guide the crops to move along the chain 24, so as to avoid the crops from entering the inside of the chain 24.

[0068] Preferably, the first divider 28 further comprises a positioning sleeve 284 arranged on the mounting frame 281, the divider tines 282 are hinged to the mounting frame 281 so that the divider tines 282 can swing up and down relative to the mounting frame 281, so that the divider tines 282 can automatically adapt to different ground heights and can swing up and down with the ground to maintain the state of adhering to the ground, ensure the dividing effect, and the positioning sleeve 284 is connected with the divider tines 282 and used for limiting the swing angle of the divider tines 282 relative to the mounting frame 281, so as to avoid that the divider tines 282 swing too large to completely separate from the ground.

[0069] Further, the harvesting device 2 further comprises a collision avoidance frame 29, the front end of the collision avoidance frame 29 is upwardly curved, and the collision avoidance frame 29 is arranged at the bottom of the harvesting frame 21 and used for driving the harvesting frame 21 to move upwardly to avoid collision when the road surface is protruding, so as to avoid the harvesting frame 21 from being damaged by directly colliding with the obstacle.

[0070] Preferably, the hitching device 1 further comprises a second divider 16, which comprises divider front tips 161, elastic pushing fingers 162 and pressure sensors (not shown, the same below), two elastic pushing fingers 162 are arranged at opposite sides of the divider front tips 161, the divider front tips 161 are used for combing crops onto the two elastic pushing fingers 162 and guiding the crops to the two groups of harvesting devices 2 through the two elastic pushing fingers 162, respectively, and the pressure sensors are connected with the two elastic pushing fingers 162, respectively, and used for detecting the extrusion force of the crops on the two elastic pushing fingers 162 in real time, so that the deviation direction in the advancing direction of the vehicle body can be obtained according to the pressure difference of the two elastic pushing fingers 162.

[0071] Specifically, the two groups of harvesting devices 2 on the folding silage header 1000 are respectively used for harvesting crops on the left and right sides. When the extrusion force of the left elastic finger 162 is greater than that of the right elastic finger 162, it indicates that the folding silage header 1000 is closer to the crops on the left side, that is, the advancing direction of the vehicle body has deviated to the left. At this time, the vehicle body can be controlled to change direction to the right until the extrusion forces of the two elastic fingers 162 are the same or the pressure difference is less than a preset error value. Similarly, when the extrusion force of the left elastic finger 162 is less than that of the right elastic finger 162, it indicates that the folding silage header 1000 is closer to the crops on the right side, that is, the advancing direction of the vehicle body has deviated to the right. At this time, the vehicle body can be controlled to change direction to the left until the extrusion forces of the two elastic fingers 162 are the same or the pressure difference is less than a preset error value. By detecting the extrusion forces of the two elastic fingers 162 in real time, the relationship between the harvesting direction of the folding silage header 1000 and the crops can be determined, which facilitates accurate adjustment of the harvesting angle and improves the harvesting effect.

[0072] As shown in Figure 5 The folding silage header 1000 also includes a crop lifting device 6 arranged on the upper surface of the harvesting device 2. The crop lifting device 6 includes a support frame 61, a crop lifting rod 62, and an angle adjusting mechanism 63. The support frame 61 is hinged to the harvesting frame 21 of the harvesting device 2. The crop lifting rod 62 is arranged on the end of the support frame 61 away from the harvesting device 2. The support frame 61 has a telescopic structure and is used to adjust the height of the crop lifting rod 62 through telescopic action. The angle adjusting mechanism 63 is connected to the support frame 61 and is used to drive the support frame 61 to rotate relative to the harvesting device 2, thereby adjusting the forward inclination angle of the crop lifting rod 62.

[0073] Specifically, the crop lifting rod 62 is arranged above the harvesting device 2 through the support frame 61. The crop lifting rod 62 is used to push down the upper part of the crops forward while the bottom of the crops is being cut and conveyed, thereby horizontally laying down the cut materials and enabling the crops to be orderly inputted backward. Since the height of the crop lifting rod 62 can be adjusted through the telescopic action of the support frame 61, and the forward inclination angle of the crop lifting rod 62 can be adjusted by driving the support frame 61 to rotate through the angle adjusting mechanism 63, the height and angle of the crop lifting rod 62 can be adjusted, which can accurately adapt to different crops and has strong applicability. In addition, the support frame 61 can be driven to rotate towards the upper surface of the harvesting device 2 through the angle adjusting mechanism 63, so that the support frame 61 and the crop lifting rod 62 are both folded and stored on the upper surface of the harvesting device 2, avoiding interference of the crop lifting device 6 with the folding and overturning of the harvesting device 2.

[0074] Preferably, the supporting frame 61 is further provided with a limiting chain 64, a first end of the limiting chain 64 is connected with the supporting frame 61, and a second end of the limiting chain 64 is connected with the harvesting device 2, so as to limit the maximum angle of the supporting frame 61 relative to the harvesting device 2 through the limiting chain 64, and avoid the overturning of the supporting frame 61.

[0075] Further, the angle adjusting mechanism 63 comprises a driving assembly and a rotating shaft 631 connected with the driving assembly, the supporting frame 61 is connected with the rotating shaft 631, and the rotating shaft 631 is rotatably arranged in a pre-set shaft hole of the harvesting frame 21, that is, the supporting frame 61 is hinged with the harvesting frame 21 through the rotating shaft 631, and the driving assembly 632 is used for driving the supporting frame 61 and the rotating shaft 631 to rotate along the pre-set shaft hole of the harvesting frame 21.

[0076] In the embodiment, the driving assembly 632 comprises a push-pull assembly 6321 and a traction shaft 6322, the traction shaft 6322 is arranged on the supporting frame 61, and the traction shaft 6322 is arranged in a direction close to the supporting frame 61 and is spaced apart from the rotating shaft 631, the push-pull assembly 6321 is connected with the traction shaft 6322, and the push-pull assembly 6321 is used for pushing and pulling the traction shaft 6322, so as to drive the supporting frame 61 to rotate through the traction shaft 6322. Since the traction shaft 6322 is closer to the supporting frame 61 than the rotating shaft 631, the force arm is longer, the driving is more labor-saving, and the driving assembly 632 and the supporting frame 61 can form a triangular structure on the harvesting frame 21, so that the stability is stronger, and the supporting strength of the supporting frame 62 is effectively improved.

[0077] In another embodiment, the driving assembly 632 can also adopt a motor, a rotary cylinder or a rotary oil cylinder directly connected with the rotating shaft 631, the driving assembly is used for driving the rotating shaft 631 to rotate, so as to drive the supporting frame 61 to rotate through the rotating shaft 631, and adjust the forward inclination angle of the supporting frame 62, the driving structure is simpler, and the angle adjustment can also be realized.

[0078] Further, the supporting frame 61 is provided with a plurality of supporting frames 61, the plurality of supporting frames 61 are respectively connected with the supporting frame 62 to improve the supporting stability of the supporting frame 62, the plurality of supporting frames 61 are arranged in the axial direction of the rotating shaft 631 and are respectively connected with the rotating shaft 631, so as to drive the plurality of supporting frames 61 to rotate through the rotating shaft 631, and the driving structure is simple and efficient.

[0079] Further, the support frame 61 comprises a first support frame and a second support frame nested with each other, and a plurality of connecting holes are formed in the first support frame and the second support frame along the length direction, the first support frame and the second support frame can be connected and fixed by bolts arranged in the corresponding connecting holes, and after the bolts are removed, the first support frame can slide relative to the second support frame to realize the telescopic adjustment of the support frame 61, and the telescopic adjustment structure is simple and efficient, and is not prone to failure. In other embodiments, the support frame 61 can also comprise two telescopic rods nested with each other, and the locking and limiting of the two telescopic rods can be realized by the jackscrew installed on one of the telescopic rods to tightly press the other telescopic rod, and the telescopic adjustment of the support frame 61 can also be realized.

[0080] Further, the end of the supporting rod 62 away from the hanging device 1 is provided with a reference part 621, the reference part 621 is arranged corresponding to the end of the harvesting device 2 and is used for the purpose of showing the width and height, so that when the harvesting device 2 is blocked by crops, the position of the harvesting device 2 can be determined through the reference part 621, which facilitates the accurate control of the harvesting operation and avoids accidents.

[0081] As shown in Figure 1 The folding silage header 1000 further comprises a tower wheel conveying device 7 arranged on the hanging device 1 and used for conveying the crops harvested by the harvesting device 2 to the vehicle body. Specifically, the tower wheel conveying device 7 comprises a rotating assembly and a plurality of feeding star wheels connected with the rotating assembly and arranged in the vertical direction, and the feeding star wheels are used for rotating under the driving of the rotating assembly to realize the material conveying action.

[0082] As a second aspect, the embodiment of the present application also provides a harvester (not shown in the figure, the same below) comprising a vehicle body and the above-mentioned folding silage header 1000, and the folding silage header 1000 is detachably hung on the vehicle body through the hanging device 1. Since the harvester is equipped with the folding silage header 1000, the transverse harvesting range can be effectively expanded, the harvesting efficiency can be improved, and the transverse occupied space can be reduced through the folding action of the folding silage header 1000, which is more conducive to transportation, scene change and flexible adjustment of the harvesting operation, and has strong applicability.

[0083] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A folding silage header, characterized in that The utility model relates to a kind of agricultural harvesting machine, including: hitch device (1), the hitch device (1) is detachably hitched on vehicle body; Harvesting device (2), the harvesting device (2) is equipped with two groups, two groups of harvesting device (2) are separately located on the opposite sides of the hitch device (1); Translation device (3), the translation device (3) is equipped on the harvesting device (2), the translation device (3) is used to drive two groups of harvesting device (2) to be close to each other to the first use state of being close to the hitch device (1), the translation device (3) is also used to drive two groups of harvesting device (2) to be far away from each other to the second use state with preset horizontal interval relative to the hitch device (1); Locking device (4), the locking device (4) is equipped on the harvesting device (2), the locking device (4) is used to lock and fix the harvesting device (2) relative to the hitch device (1) when the harvesting device (2) is in the first use state; Overturning device (5), the overturning device (5) is connected with the hitch device (1) and the harvesting device (2) respectively, the overturning device (5) is used to drive the harvesting device (2) to overturn and fold relative to the hitch device (1) when the harvesting device (2) is in the second use state; The overturning device (5) includes overturning cylinder (51), overturning seat (52) and guide mechanism (53), the first end of the overturning cylinder (51) is hinged with the hitch device (1), the second end of the overturning cylinder (51) is hinged with the overturning seat (52), the guide mechanism (53) is equipped on the harvesting device (2) along the driving direction of the translation device (3), and the overturning seat (52) is installed on the guide mechanism (53); The translation device (3) is used to drive the harvesting device (2) to be translated relative to the overturning seat (52) along the limiting direction of the guide mechanism (53), and the overturning cylinder (51) is used to drive the harvesting device (2) to overturn to vertical state or horizontal state after the harvesting device (2) is translated to the second use state; The locking device (4) includes locking cylinder (41), reset spring (42), transmission assembly (43) and locking hook (44), the first end of the transmission assembly (43) is connected with the locking cylinder (41) and the reset spring (42) respectively, the second end of the transmission assembly (43) is connected with the locking hook (44), the locking cylinder (41) is used to drive the transmission assembly (43) to rotate and drive the locking hook (44) to be hung on the preset locking slot of the hitch device (1) or be separated from the locking slot, and the reset spring (42) is used to exert elastic force on the transmission assembly (43) along the hanging direction of the locking hook (44).

2. The folding silage header of claim 1, characterized in that The hanging device (1) comprises a central gear box (11), two universal shafts (12) and two transmission gear boxes (13), the central gear box (11) is used for being connected with a power device of the vehicle body, first ends of the two universal shafts (12) are connected with two ends of the central gear box (11) respectively, second ends of the two universal shafts (12) are connected with the two transmission gear boxes (13) correspondingly, and the two transmission gear boxes (13) are connected with two groups of harvesting devices (2) correspondingly; The universal shaft (12) is provided with an overload protector (122) and a claw disc (121) respectively, the claw disc (121) is used for engaging the transmission gear box (13) with the central gear box (11) when the harvesting device (2) is in a first use state, and the claw disc (121) is also used for separating the transmission gear box (13) from the central gear box (11) when the harvesting device (2) is in a second use state.

3. The folding silage header of claim 1, wherein, The harvesting device (2) comprises a harvesting frame (21), a driving sprocket (22) and a driven sprocket (23) which are separately arranged on opposite ends of the harvesting frame (21), chains (24) which are respectively arranged around the driving sprocket (22) and the driven sprocket (23), and a prong (25) and a following cutter (26) which are respectively arranged on the chains (24); The harvesting frame (21) is provided with a fixed knife along a transmission direction of the chains (24), the prong (25) is arranged in multiple groups along the chains (24) and is used for moving crops to the fixed knife in the process of rotating the chains (24), and the following cutter (26) is arranged in multiple groups along the chains (24) and is used for being driven by the chains (24) to cooperate with the fixed knife to cut the crops.

4. The folding silage header of claim 3, wherein, A limiting sliding groove (211) is arranged on a front end of the harvesting frame (21) along a forward direction of the vehicle body, the limiting sliding groove (211) is arranged perpendicularly to the forward direction of the vehicle body, a plurality of supporting bearings (241) are arranged on the chains (24), the prong (25) and the following cutter (26) are both mounted on the supporting bearings (241), and the limiting sliding groove (211) is used for embedding and guiding the movement of the corresponding supporting bearing (241) when the supporting bearing (241) moves to the front end of the harvesting frame (21) along with the chains (24).

5. The folding silage header of claim 3, wherein, The harvesting device (2) further comprises a first crop divider (28), the first crop divider (28) comprises a mounting frame (281), crop divider teeth (282), a crop divider prong (283) and a positioning sleeve (284), the mounting frame (281) is mounted on the harvesting frame (21), the crop divider teeth (282) are arranged at a front end of the mounting frame (281) and are used for combing crops, and the crop divider prong (283) is arranged at a rear end of the mounting frame (281) and is used for guiding the crops to move along the chains (24). The divider tine (282) is hinged to the mounting frame (281) so that the divider tine (282) can swing up and down relative to the mounting frame (281), thereby adapting the divider tine (282) to different ground levels, and the positioning sleeve (284) is connected to the divider tine (282) and used to limit the swing angle of the divider tine (282) relative to the mounting frame (281).

6. The folding silage header of claim 1, wherein, The hitching device (1) comprises a second divider (16), the second divider (16) comprises a divider front tip (161), two elastic fingers (162) and a pressure sensor, the two elastic fingers (162) are arranged on opposite sides of the divider front tip (161), the divider front tip (161) is used to comb crops onto the two elastic fingers (162) and guide the crops to two groups of harvesting devices (2) through the two elastic fingers (162), and the pressure sensor is connected to the two elastic fingers (162) and used to detect the extrusion force of the two elastic fingers (162) by crops in real time, so that the deviation direction of the vehicle body in the advancing direction can be obtained according to the pressure difference of the two elastic fingers (162).

7. The folding silage header of claim 1, wherein, The folding silage header further comprises a supporting frame (61), a supporting rod (62) and an angle adjusting mechanism (63), the supporting frame (61) is hinged to the harvesting device (2), the supporting rod (62) is arranged at one end of the supporting frame (61) away from the harvesting device (2), the supporting frame (61) adopts a telescopic structure and is used to adjust the height of the supporting rod (62) through telescopic action, and the angle adjusting mechanism (63) is connected to the supporting frame (61) and used to drive the supporting frame (61) to rotate relative to the harvesting device (2), thereby adjusting the forward inclination angle of the supporting rod (62).

8. A harvester comprising a vehicle body, characterised in that, The harvester further comprises the folding silage header according to any one of claims 1 to 7, and the folding silage header is detachably hitched to the vehicle body through the hitching device (1).

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